Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
2 × 10 = ______
81 + 10 = ______
34 − 10 = ______
9 × 10 = ______
6 × 10 = ______
89 + 20 = ______
88 + 10 = ______
8 × 10 = ______
7 × 10 = ______
5 × 10 = ______
73 + 10 = ______
28 + 20 = ______
36 − 10 = ______
45 + 10 = ______
56 + 20 = ______
53 + 10 = ______
26 + 10 = ______
74 − 10 = ______
52 + 10 = ______
64 + 20 = ______
